Collection: Fleece Performance Engineering
Fleece Performance – Premium Diesel Performance Parts & Upgrades
Fleece Performance is a pioneer in the diesel performance industry, offering high-quality, innovative parts designed to enhance power, efficiency, and reliability. Whether you own a Cummins, Duramax, or Power Stroke engine, our products are engineered to deliver superior performance, meeting the...
-
5/16 Inch Quick Connect to 3/4 Inch-16 O-ring (-8 AN) Fleece Performance
Regular price $14.99 USDSale price $14.99 USD Regular priceUnit price / per$15.99 USDSale -
Auxiliary Heated Fuel Filter Kit for 2011-2016 LML Duramax
Regular price $399.00 USDSale price $399.00 USD Regular priceUnit price / per$418.95 USDSale -
Stainless Steel Fuel Supply Tube Nuts for 5.9/6.7L Cummins Fleece Performance
Regular price $89.99 USDSale price $89.99 USD Regular priceUnit price / per$94.49 USDSale -
Freedom Series Duramax Cylinder Head with Cupless Injector Bore for 2001-2004 LB7 (Driver Side) Fleece Performance
Regular price $1,199.00 USDSale price $1,199.00 USD Regular priceUnit price / per$1,249.00 USDSale -
Donaldson P551329 Replacement Fuel Filter for 19-24 Ram 2500-3500 Fleece Performance
Regular price $21.99 USDSale price $21.99 USD Regular priceUnit price / per$22.99 USDSale -
Stainless Steel Turbo Stud Kit for S-300/S-400 Fleece Performance
Regular price $59.95 USDSale price $59.95 USD Regular priceUnit price / per$62.95 USDSale -
5.9L Freedom Series Cummins Cylinder Head Performance Fleece Performance
Regular price $3,750.00 USDSale price $3,750.00 USD Regular priceUnit price / per$3,899.00 USDSale -
6.7L Dual Pump Hardware Kit for 2013-2018 Cummins Fleece Performance
Regular price $780.00 USDSale price $780.00 USD Regular priceUnit price / per$819.00 USDSale -
Lower Heater Return Hose for 2013-2024 Cummins Equipped Ram Fleece Performance
Regular price $49.99 USDSale price $49.99 USD Regular priceUnit price / per$52.49 USDSale -
Freedom Series 10W-30 Diesel Engine Oil (1 Quart) Fleece Performance
Regular price $14.99 USDSale price $14.99 USD Regular priceUnit price / per$15.99 USDSale -
Universal 45 Degreeree Turbo Drain Nipple with O-ring Fleece Performance
Regular price $34.99 USDSale price $34.99 USD Regular priceUnit price / per$36.74 USDSale -
Duramax CP3K Fleece Performance
Regular price $1,349.00 USDSale price $1,349.00 USD Regular priceUnit price / per$1,399.00 USDSale -
Intake and Grid Heater Kit Fleece Performance
Regular price $599.00 USDSale price $599.00 USD Regular priceUnit price / per$628.95 USDSale -
Auxiliary Heated Fuel Filter Kit for 03-18 Dodge Ram Cummins Fleece Performance
Regular price $449.00 USDSale price $449.00 USD Regular priceUnit price / per$471.45 USDSale -
6.7L Cummins CP3K Fleece Performance
Regular price $1,399.00 USDSale price $1,399.00 USD Regular priceUnit price / per$1,449.00 USDSale -
LB7 Duramax Injection Lines Complete Set 8 Fleece Performance
Regular price $379.05 USDSale price $379.05 USD Regular priceUnit price / per$399.00 USDSale -
Turbocharger Installation Kit for 1994-2002 Cummins HX35 Turbochargers Fleece Performance
Regular price $35.99 USDSale price $35.99 USD Regular priceUnit price / per$37.79 USDSale -
Fleece Performance Cummins Front Gear Housing Dowels Fleece Performance
Regular price $18.99 USDSale price $18.99 USD Regular priceUnit price / per$19.94 USDSale -
HE351 CW Actuator Solenoid Plug w/ Boost Reference Fleece Performance
Regular price $28.91 USDSale price $28.91 USD Regular priceUnit price / per$30.44 USDSale -
-10 to 3/4 Inch-16 Straight Male Black w/ O-Ring Fleece Performance
Regular price $14.25 USDSale price $14.25 USD Regular priceUnit price / per$14.96 USDSale -
2003 - 2018 Dodge Cummins Auxiliary Fuel Filter Kit Fleece Performance
Regular price $349.00 USDSale price $349.00 USD Regular priceUnit price / per$366.45 USDSale -
Replacement Heater Core Line Kit For 89-98 12 Valve Cummins Fleece Performance
Regular price $379.00 USDSale price $379.00 USD Regular priceUnit price / per$397.95 USDSale -
Fire Ring Head Gasket for 5.9.L Cummins Fleece Performance
Regular price $339.00 USDSale price $339.00 USD Regular priceUnit price / per$355.95 USDSale -
M22 Thermostat Plug for Cummins Cylinder head
Regular price $15.99 USDSale price $15.99 USD Regular priceUnit price / per$16.79 USDSale -
GM Duramax Oil Cooler Adapter Kit Fleece Performance
Regular price $99.00 USDSale price $99.00 USD Regular priceUnit price / per$103.95 USDSale -
2003-2018 Upper Fan Idler for use with Electric Water Pumps Black Finish Contract Cut Fleece Performance
Regular price $113.99 USDSale price $113.99 USD Regular priceUnit price / per$119.99 USDSale -
Turbocharger Installation Kit for 2007.5-2018 6.7L Cummins VGT Turbochargers Fleece Performance
Regular price $39.99 USDSale price $39.99 USD Regular priceUnit price / per$41.99 USDSale -
CP3 Adapter for 6.6L Duramax Fleece Performance
Regular price $66.49 USDSale price $66.49 USD Regular priceUnit price / per$69.99 USDSale
Unleash the Power of Diesel Trucks with Fleece Performance Engineering!
Discover the pinnacle of diesel performance with Fleece Performance Engineering's cutting-edge parts. Experience unrivaled power, efficiency, and excellence as you take your truck to new heights of performance. Our precision-engineered products ensure seamless integration, making every ride a seamless joy. Say goodbye to average and embrace extraordinary acceleration, towing prowess, and fuel efficiency.
Join the league of truck owners who dominate the road and conquer tough terrains effortlessly. Fueled by our commitment to excellence and innovation, Fleece Performance Engineering offers you a lasting partnership for all your diesel needs.
Upgrade your diesel truck today and embrace a new era of diesel dominance. Order your Fleece Performance Engineering products now and unleash the true potential of your truck!











